TABLE 3.

Measles, mumps and rubella immunization coverage rates at 24 months of age for children pre- and during intervention for the Saskatoon Health Region (SHR; Saskatchewan) and the control region of Regina Qu’Appelle Health Region (RQHR; Saskatchewan)

Neighbourhood	Preintervention (SHR) (October 2000 to September 2005)			Intervention (SHR) (October 2005 to September 2006)			Rate ratio (intervention/preintervention)*	95% CI for rate ratio
	n/N	%	95% CI	n/N	%	95% CI
Low income	536/1075	49.9	44.0–55.7	142/257	55.3	43.3–67.2	1.10	0.97–1.25
Middle income	5892/8699	67.7	65.7–69.6	1425/1880	75.8	71.9–79.6	1.11	1.08–1.14
High income	1148/1421	80.8	76.7–84.8	215/243	88.5	80.6–96.3	1.09	1.03–1.15
Rural	3563/4807	74.1	71.6–76.5	736/901	81.7	76.6–86.7	1.10	1.06–1.14
Total	11,870/17,603	67.4	66.0–68.7	2597/3508	74.0	71.1–76.8	1.10	1.08–1.12
Neighbourhood	Preintervention (RQHR) (October 2000 to September 2005)			Intervention (RQHR) (October 2005 to September 2006)			Rate ratio (intervention/preintervention)	95% CI for rate ratio
	n/N	%	95% CI	n/N	%	95% CI
Low income	618/1550	39.8	50.8–56.6	162/360	45.0	39.9–50.1	1.13	1.01–1.29
Middle income	4980/7270	68.5	67.4–69.5	1177/1609	73.1	70.9–75.2	1.07	1.04–1.10
High income	950/1165	81.5	79.3–83.7	193/225	85.7	80.6–89.7	1.05	0.99–1.11
Rural	2148/3083	69.6	68.0–71.2	368/550	66.9	62.8–70.7	0.96	0.90–1.02
Total	8696/13,068	66.5	65.7–67.3	1900/2744	69.2	67.5–70.9	1.04	1.01–1.07

^*The rate ratio includes immunization coverage rates during the intervention time period in the numerator and the immunization coverage rates before the intervention time period in the denominator